Assertion: Two systems, which are in thermal equilibrium with a third system, are in thermal equilibrium with each other. Reason: The heat flows spontaneously from a system at a higher temp. to a system at a lower temp.A. If both, Assertion and Reason are true and Reason is the correct explanation of the Asserrion.B. If both,Assertion and Reason are true but Reason is not a correct explanation of the Assertion.C. If Assertion is true but the Reason is false.D. If both, Assertion and Reason are false.

Assertion: Two systems, which are in thermal equilibrium with a third

1.	Assertion: Two systems, which are in thermal equilibrium with a third system, are in thermal equilibrium with each other. Reason: The heat flows spontaneously from a system at a higher temp. to a system at a lower temp.A. If both, Assertion and Reason are true and Reason is the correct explanation of the Asserrion.B. If both,Assertion and Reason are true but Reason is not a correct explanation of the Assertion.C. If Assertion is true but the Reason is false.D. If both, Assertion and Reason are false.
Answer» Correct Answer - A This is as per Zeroth law of thermodynamics.

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